Reuben iiallenstein



(No Mode-1.)

` R. HALLENSTEIN.

DEVICE FOR OPERATING HATCHWAYDOORS.

" No. 464,564. n i PatentedDeo. 8, 1891.

NrTnn STATES PATENT OFFICE.

REUBEN IIALLENSTEIN, OF MELBOURNE, VICTORIA.

DEVICE FOR OPERATING HATCHWAY-DOORS.

`SPIECIFICATION forming part of Letters Patent No. 464,564, datedDecember 8, 1891.

Application led May 18, 1891 Serial No. 398,211. (No model.) PatentedinEngland October l, 1890, No. 15,541; in Belgium October 1, 1890, No.92,171; in Turkey October 1, 1890,1T0. 196; in France October 1, 1890,No. 208,578; in Italy November 13, 1890,11VI, 82; in Spain November 15,1890, No. 11,291; in Brazil December 16, 1890, No. 1,018; in Cape ofGood Hope February 4, 1891, and in Austria-Hungary February 12, 1891,No. 44,193, and No. 77,829.

To @ZZ whom it may concern:

Be it known that I, REUBEN HALLENSTEIN, merchant, of Melbourne, in thecolony of Victoria, Australia, havc invented an Improved Apparatus forAutomatically Operating Hinged or Folding Doors Closing Lift-Openings inFloors of Buildings, of which the following is a specification.

This invention is specially adapted for liftshafts where the lift passesthrough a number of doors. It is not the usual custom when the lift isnot working to close the openings in the several floors through whichthe lift passes, but the apertures in the floors remain open, thusconverting the lift-shaft into a huge chimney, which acts as a conductorto the iiames in case of tires.

The obj ect of this invention' is special apparatus for automaticallyopening and closing hinged doors, which will effectually shut offcommunication between the iioors of the building by way of thelift-shaft.

The means by which the desired object is attained will be moreeffectively' understood by referring to the accompanying sheet ofdrawings, and in which- Figure 1 of the drawings shows av hinged dooropening downward, while Fig. Qshow's a hinged door opening upward. Y,

A A are the sides of the lift-shaft.

A is the cage-guide running from the top to the bottom of the building.

B B are the rods, also running from the top to the bottom of thebuilding. The rods B B are stayed and guided by guide-brackets b b.'

Each of these rods is counterweighted by weights O O', placed above thehighest point to which the cage rises. The tendency of the Acounter-weights is to cause the rods to rise and thereby open the hingeddoors D D. The bottom of each rod is provided with a square guide-pieceE E, passing through the guidebrackets b b. By means of the guide-piecesE E the rods B B are prevented from turning..

To the lower ends of the guide-pieces E E are secured toe or fingerpieces e c', which, when turned so as to project under the floor of thecage, will enable the weight of the descending cage to pull down therods B B and thereby cause the doors D D on each floor 5o to close.

Fis a transverse shaft which forms the pivot or hinge of the door D.Radiating from the shaft F are arms f f which support at their outerextremities a segmental rack G, which gears either directly with avertical rack H, secured to the rod B, (in which case the door D wouldopen upward,) or indirectly through the medium of an intermediate pinionh, in which case the door D will open downward, as shown in thedrawings. NVhen the cage rises, it will release the toe-piece e andallow the counter-weight O to descend, thus draw-- ing up the rod B andwith it its series of racks H H. The result will be that the racks H H,gearing with the segmental racks G G, will cause the shafts F F torotate and ,consequently open the doors upward if geared directly anddownward if geared through the intermediate pinions h h. The right-handhalf of the drawings exhibits exactly the sa me principle, but with amechanical equivalent device substituted for the segmental and verticalracks. This device consists in attaching to the transverse shaft F asingle radial arm f2, provided with a slotted end, the length of theslot being the length of the versin of the arc through which the arm f2travels. The mode of operation is precisely similar to that described in'reference to the devices shown in the left half of the drawings. Therod B is provided with an anti-friction roller h', which takes into theslot at the end of the radial arm f2. The rods B B are supportedlaterally by guide-rollers y' It will be obvious that the opening of thedoors is caused automatically by the descent of the counter-weights, andthe closing of the doors is also caused automatically by the descendingcage impinging against the toepieces e e.

Having thus described myinvention, whatl claim as new, and desire tosecure by Letters Patent of the United States, is-

In an apparatus for operating hatchwaydoors, the combination, withvertical counterweighted rods and toe-pieces at their lower extremitiesagainst which the cage may impin ge,

of transverse shafts forming pivots for the In witness whereof I havehereunto set my doors, arms radiating from said shaft, seid hand inpresence of two wltuesses.

arms being connected with und operated by REUBEN IIALLENSTEIN. theVertical rods, square guide-pieces at the Witnesses:

5 bottom of the vertical rods, whereby they are JONATHAN BEAR,

prevented from turning, and guide-brackets Bcmk Place, llfelbozmne,Patent Agent, through which said guide-pieces pass, sub- JOSEPH H. BUSH,

stantally as set forth. G7 King Street, Melbourne.

